Companion for Substrate#10915 (#1051)

* Companion for Substrate#10915

* Fix compile

* Fix compile

* update lockfile for {"polkadot"}

Co-authored-by: parity-processbot <>

cumulus/client/relay-chain-rpc-interface/src/lib.rs

@@ -416,8 +416,7 @@ impl RelayChainInterface for RelayChainRPCInterface {
 			.state_get_read_proof(storage_keys, Some(relay_parent))
 			.await
 			.map(|read_proof| {
-				let bytes = read_proof.proof.into_iter().map(|bytes| bytes.to_vec()).collect();
-				StorageProof::new(bytes)
+				StorageProof::new(read_proof.proof.into_iter().map(|bytes| bytes.to_vec()))
 			})
 	}